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Biaxially self‐reinforced high‐density polyethylene prepared by dynamic packing injection molding. II. Microstructure investigation
Author(s) -
Lei Jun,
Jiang Chaodong,
Shen Kaizhi
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.20639
Subject(s) - high density polyethylene , materials science , microstructure , composite material , differential scanning calorimetry , crystallinity , polyethylene , molding (decorative) , scanning electron microscope , polyoxymethylene , polymer , physics , thermodynamics
Differential scanning calorimetry, wide‐angle X‐ray diffraction, small‐angle X‐ray scattering, and transmission electron microscope are employed to study the microstructure of biaxially self‐reinforced high‐density polyethylene (HDPE) prepared in uniaxial oscillating stress field by dynamic packing injection molding. The results indicate that the biaxial self‐reinforcement of HDPE is mainly due to the existence of interlocking shish‐kebab morphology (i.e., zip fastener structure), along with the orientation of lamellae and molecular chains and the enhanced crystallinity. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 1591–1596, 2004